What does this "play with their own command" mean?
Captain’s Cup Navy Sports Week
Monday-Friday, September 30 – October 4 • 0900 Various Locations
Participants must play with their own command. Events are softball, flag football, soccer, volleyball and basketball. Commands must register by 1700 Wednesday, September 26 at the Fitness, Adult Sports, and Deployed Forces Office. Coaches/Captain’s meeting on site before each event at 0845.